银鲈胚胎和仔鱼的发育  

Observation on embryonic and larval development of Bidyanus bidyanus

作　　者：李恒颂[1] 邬国民[1] 范阳[1] 陈慈 胡隐昌[1] 邓国成[1] 

机构地区：[1]中国水产科学研究院珠江水产研究所

出　　处：《中国水产科学》2000年第2期5-9,共5页Journal of Fishery Sciences of China

摘　　要：本文对银鲈 (Bidyanusbidyanus)胚胎和仔鱼的发育进行了观察 ,详细描述了发育各期的形态特征和所需时间。受精卵充分吸水后呈圆形 ,为浮性卵 ,在 2 3～ 2 5℃时 ,孵化时间约为 32h。仔鱼出膜后第 3天卵黄囊消失 ,第 5天开始摄食 ,到第The fertilized eggs of Bidyanus bidyanus are round and floating.The embryo had been hatched for about 32 h before hatched out with water temperature 23～25℃.Yolk sac in the larvae disappeared at day 3 after hatching.The larvae can feed at day 5 after hatching and developed completely at day 7.

关 键 词：银钙 胚胎发育 仔鱼发育 形态特征 发育时间 

分 类 号：Q959.483[生物学—动物学] Q418